---
title: AVAudioVoiceProcessingSpeechActivityEvent
framework: avfaudio
role: symbol
role_heading: Enumeration
path: avfaudio/avaudiovoiceprocessingspeechactivityevent
---

# AVAudioVoiceProcessingSpeechActivityEvent

Types of speech activity events.

## Declaration

```swift
enum AVAudioVoiceProcessingSpeechActivityEvent
```

## Topics

### Events

- [AVAudioVoiceProcessingSpeechActivityEvent.started](avfaudio/avaudiovoiceprocessingspeechactivityevent/started.md)
- [AVAudioVoiceProcessingSpeechActivityEvent.ended](avfaudio/avaudiovoiceprocessingspeechactivityevent/ended.md)

### Initializers

- [init(rawValue:)](avfaudio/avaudiovoiceprocessingspeechactivityevent/init(rawvalue:).md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Handling Muted Speech Events

- [setMutedSpeechActivityEventListener(_:)](avfaudio/avaudioinputnode/setmutedspeechactivityeventlistener(_:).md)